| 摘要 |
PURPOSE:To make the movement and cutting out, etc., of a rudder unnecessary and facilitate the replacement work of said rudder by attaching a hydraulic Jack between a frame mounted on a pintle bushing and a lower part pintle, and hereby pulling out the bushing. CONSTITUTION:On a pintle bushing 9 attached to a stern frame 2, frames 5, 6 and 7 are mounted by bolts 8. Among these frames and a lower part pintle 10, a hydraulic Jack 4 is provided, with which the bushing 9 is pulled out. When pulling out the bush, the movement of a heavy rudder and the cutting out for said movement become unnecessary, permitting the replacement work of the rudder to be facilitated. |
